:root {
    color-scheme: light dark;

    --bg: #f4f6fa;
    --surface: #ffffff;
    --text: #1a1d23;
    --muted: #5b6472;
    --border: #e1e6ee;
    --heading: #1f3a5f;
    --link: #2b5da8;
    --marker: #2b5da8;

    --hero-from: #1f3a5f;
    --hero-to: #2f6bc4;
    --hero-text: #ffffff;
    --hero-accent: #bcd6ff;
    --hero-pill: rgba(255, 255, 255, 0.14);
    --hero-pill-hover: rgba(255, 255, 255, 0.26);

    --shadow:
        0 1px 2px rgba(20, 30, 50, 0.06), 0 6px 18px rgba(20, 30, 50, 0.06);
    --shadow-hover:
        0 2px 4px rgba(20, 30, 50, 0.08), 0 12px 28px rgba(20, 30, 50, 0.12);

    --font-sans:
        ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    --font-serif:
        "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua",
        Georgia, serif;
    --radius: 14px;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #0e1117;
        --surface: #161b22;
        --text: #e6e9ef;
        --muted: #9aa4b2;
        --border: #262d38;
        --heading: #a9c8ff;
        --link: #7fb0ff;
        --marker: #7fb0ff;

        --hero-from: #14213a;
        --hero-to: #234a85;
        --hero-text: #f4f7fc;
        --hero-accent: #a9c8ff;
        --hero-pill: rgba(255, 255, 255, 0.1);
        --hero-pill-hover: rgba(255, 255, 255, 0.2);

        --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 6px 18px rgba(0, 0, 0, 0.3);
        --shadow-hover:
            0 2px 4px rgba(0, 0, 0, 0.5), 0 12px 28px rgba(0, 0, 0, 0.45);
    }
}

:root[data-theme="dark"] {
    color-scheme: dark;

    --bg: #0e1117;
    --surface: #161b22;
    --text: #e6e9ef;
    --muted: #9aa4b2;
    --border: #262d38;
    --heading: #a9c8ff;
    --link: #7fb0ff;
    --marker: #7fb0ff;

    --hero-from: #14213a;
    --hero-to: #234a85;
    --hero-text: #f4f7fc;
    --hero-accent: #a9c8ff;
    --hero-pill: rgba(255, 255, 255, 0.1);
    --hero-pill-hover: rgba(255, 255, 255, 0.2);

    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 6px 18px rgba(0, 0, 0, 0.3);
    --shadow-hover:
        0 2px 4px rgba(0, 0, 0, 0.5), 0 12px 28px rgba(0, 0, 0, 0.45);
}

:root[data-theme="light"] {
    color-scheme: light;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: clamp(1rem, 4vw, 2.5rem);
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    max-width: 62rem;
    margin-inline: auto;
}

a {
    color: var(--link);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;
    transition: color 0.15s ease;
}

a:hover {
    text-decoration-thickness: 2px;
}

:focus-visible {
    outline: 3px solid var(--link);
    outline-offset: 3px;
    border-radius: 4px;
}

time {
    font-variant-numeric: tabular-nums;
}

body > header {
    position: relative;
    overflow: hidden;
    padding: clamp(1.75rem, 6vw, 3.5rem);
    border-radius: calc(var(--radius) + 6px);
    background:
        radial-gradient(
            circle at 85% 0%,
            rgba(255, 255, 255, 0.18),
            transparent 45%
        ),
        linear-gradient(135deg, var(--hero-from), var(--hero-to));
    color: var(--hero-text);
    box-shadow: var(--shadow);
}

body > header h1 {
    margin: 0 0 0.35rem;
    font-family: var(--font-serif);
    font-size: clamp(2rem, 6vw, 3.4rem);
    line-height: 1.1;
    letter-spacing: -0.01em;
}

body > header p.main-skills {
    margin: 0;
    font-size: clamp(1.05rem, 2.5vw, 1.35rem);
    font-weight: 600;
    color: var(--hero-accent);
}

body > header p.location {
    margin: 0.2rem 0 0;
    opacity: 0.85;
}

body > header ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1.5rem 0 0;
    padding: 0;
    list-style: none;
}

body > header a {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    background: var(--hero-pill);
    color: var(--hero-text);
    font-size: 0.92rem;
    text-decoration: none;
    transition:
        background 0.15s ease,
        transform 0.15s ease;
}

body > header a:hover {
    background: var(--hero-pill-hover);
    transform: translateY(-1px);
}

body > header a:focus-visible {
    outline-color: var(--hero-text);
}

main > section {
    margin-top: clamp(2rem, 6vw, 3.25rem);
}

main > section > h2 {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 0 0 1.25rem;
    font-family: var(--font-serif);
    font-size: 1.6rem;
    line-height: 1.2;
    color: var(--heading);
}

main > section > h2::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}

main > section#summary > p {
    margin: 0;
    max-width: 70ch;
    font-size: 1.1rem;
    color: var(--text);
}

article {
    position: relative;
    margin: 0 0 1.75rem;
    padding: 0 0 0 1.6rem;
    border-left: 2px solid var(--border);
}

article::before {
    content: "";
    position: absolute;
    left: -0.45rem;
    top: 0.45rem;
    width: 0.8rem;
    height: 0.8rem;
    border-radius: 50%;
    background: var(--link);
    box-shadow: 0 0 0 4px var(--bg);
}

article > h3 {
    margin: 0;
    font-size: 1.2rem;
    line-height: 1.3;
}

article > .experience-dates {
    margin: 0.15rem 0 0.75rem;
    color: var(--muted);
    font-size: 0.92rem;
}

article > section {
    margin-top: 0.9rem;
}

article > section > h4 {
    margin: 0 0 0.35rem;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--heading);
}

article ul {
    margin: 0;
    padding-left: 1.1rem;
}

article li {
    margin-bottom: 0.4rem;
    padding-left: 0.15rem;
}

article li::marker {
    color: var(--marker);
}

main > section > ul:has(> li > a),
main > section > ul:has(> li > h3) {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

main > section > ul:has(> li > a) > li,
main > section > ul:has(> li > h3) > li {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 1.1rem 1.2rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
    transition:
        transform 0.15s ease,
        box-shadow 0.15s ease,
        border-color 0.15s ease;
}

main > section > ul:has(> li > a) > li:hover,
main > section > ul:has(> li > h3) > li:hover {
    transform: translateY(-2px);
    border-color: var(--link);
    box-shadow: var(--shadow-hover);
}

main > section > ul > li > h3 {
    margin: 0;
    font-size: 1.05rem;
}

main > section > ul > li > h3 a {
    text-decoration: none;
    color: var(--heading);
}

main > section > ul > li > h3 a:hover {
    text-decoration: underline;
}

main > section > ul > li > p {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
}

dl {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 0.6rem 1.5rem;
    margin: 0;
    padding: 1.1rem 1.3rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
}

dt {
    font-weight: 700;
    color: var(--heading);
}

dd {
    margin: 0;
    color: var(--text);
}

main > section#languages > ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

main > section#languages > ul > li {
    padding: 0.35rem 0.9rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    font-size: 0.95rem;
}

#theme {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10;
    width: 2.6rem;
    height: 2.6rem;
    display: grid;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--surface);
    color: var(--text);
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: transform 0.15s ease;
}

#theme:hover {
    transform: scale(1.08);
}

@media (max-width: 40rem) {
    dl {
        grid-template-columns: 1fr;
        gap: 0.15rem;
    }

    dd {
        margin-bottom: 0.7rem;
    }

    main > section > h2 {
        font-size: 1.4rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition: none !important;
    }
}

@media print {
    :root {
        --bg: #fff;
        --surface: #fff;
        --text: #000;
        --muted: #444;
        --border: #ccc;
        --heading: #1f3a5f;
        --link: #1f3a5f;
        --marker: #1f3a5f;
        --shadow: none;
        --shadow-hover: none;
    }

    body {
        padding: 0;
        max-width: none;
        font-size: 10.5pt;
    }

    body > header {
        background: none;
        color: #000;
        padding: 0 0 1rem;
        box-shadow: none;
        border-bottom: 2px solid var(--heading);
        border-radius: 0;
    }

    body > header p:first-of-type {
        color: var(--heading);
    }

    body > header a {
        background: none;
        color: var(--link);
        padding: 0;
    }

    #theme {
        display: none;
    }

    article,
    main > section > ul > li {
        break-inside: avoid;
    }
}